Fix tst_QStyleSheetStyle::toolTip().

Use the correct palette and enforce Fusion style to prevent
the Vista style from clobbering the tooltip palette in polish().

Task-number: QTBUG-38183
Change-Id: Id19d548f818d801c4914a343e08207195c343888
Reviewed-by: Oliver Wolff <oliver.wolff@digia.com>

1 files changed, 17 insertions, 1 deletions

diff --git a/tests/auto/widgets/styles/qstylesheetstyle/tst_qstylesheetstyle.cpp b/tests/auto/widgets/styles/qstylesheetstyle/tst_qstylesheetstyle.cpp
index 86e3c51d5a..14d59d3630 100644
--- a/tests/auto/widgets/styles/qstylesheetstyle/tst_qstylesheetstyle.cpp
+++ b/tests/auto/widgets/styles/qstylesheetstyle/tst_qstylesheetstyle.cpp
@@ -1351,10 +1351,26 @@ void tst_QStyleSheetStyle::emptyStyleSheet()
     QCOMPARE(img1,img2);
 }
 
+class ApplicationStyleSetter
+{
+public:
+    explicit inline ApplicationStyleSetter(QStyle *s) : m_oldStyleName(QApplication::style()->objectName())
+     { QApplication::setStyle(s); }
+    inline ~ApplicationStyleSetter()
+     { QApplication::setStyle(QStyleFactory::create(m_oldStyleName)); }
+
+private:
+    const QString m_oldStyleName;
+};
+
 void tst_QStyleSheetStyle::toolTip()
 {
     qApp->setStyleSheet(QString());
     QWidget w;
+    // Use "Fusion" to prevent the Vista style from clobbering the tooltip palette in polish().
+    QStyle *fusionStyle = QStyleFactory::create(QLatin1String("Fusion"));
+    QVERIFY(fusionStyle);
+    ApplicationStyleSetter as(fusionStyle);
     QHBoxLayout layout(&w);
     w.setLayout(&layout);
 
@@ -1387,7 +1403,7 @@ void tst_QStyleSheetStyle::toolTip()
     qApp->setActiveWindow(&w);
     QVERIFY(QTest::qWaitForWindowActive(&w));
 
-    QColor normalToolTip = qApp->palette().toolTipBase().color();
+    const QColor normalToolTip = QToolTip::palette().color(QPalette::Inactive, QPalette::ToolTipBase);
     QList<QWidget *> widgets;
     QList<QColor> colors;